On November 7, 2018, a mass shooting occurred in Thousand Oaks, California, United States, at the Borderline Bar and Grill, a country-western bar frequented by college students. Thirteen people were killed, including the perpetrator, who died of a self-inflicted gunshot wound, and a police officer who was shot multiple times, with the fatal round accidentally being fired by another officer. One other person sustained a gunshot wound, while fifteen others were injured by incidental causes.